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GeForce GTX 570 vs Radeon HD 4850 X2 512MB

Intro

The GeForce GTX 570 uses a 40 nm design. nVidia has set the core frequency at 732 MHz. The GDDR5 memory works at a frequency of 950 MHz on this card. It features 480 SPUs along with 60 Texture Address Units and 40 ROPs.

Compare all of that to the Radeon HD 4850 X2 512MB, which makes use of a 55 nm design. AMD has set the core frequency at 625 MHz. The GDDR3 memory runs at a frequency of 993 MHz on this model. It features 800(160x5) SPUs along with 40 Texture Address Units and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 570 219 Watts
Radeon HD 4850 X2 512MB 250 Watts
Difference: 31 Watts (14%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 570 should theoretically be a bit better than the Radeon HD 4850 X2 512MB overall. (explain)

GeForce GTX 570 152000 MB/sec
Radeon HD 4850 X2 512MB 127104 MB/sec
Difference: 24896 (20%)

Texel Rate

The Radeon HD 4850 X2 512MB is a bit (about 14%) faster with regards to anisotropic filtering than the GeForce GTX 570. (explain)

Radeon HD 4850 X2 512MB 50000 Mtexels/sec
GeForce GTX 570 43920 Mtexels/sec
Difference: 6080 (14%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce GTX 570 is superior to the Radeon HD 4850 X2 512MB, by a large margin. (explain)

GeForce GTX 570 29280 Mpixels/sec
Radeon HD 4850 X2 512MB 20000 Mpixels/sec
Difference: 9280 (46%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

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GeForce GTX 570

Amazon.com

Check prices at:

Radeon HD 4850 X2 512MB

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

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Model GeForce GTX 570 Radeon HD 4850 X2 512MB
Manufacturer nVidia AMD
Year December 2010 Nov 7, 2008
Code Name GF110 R700
Memory 1280 MB 512 MB (x2)
Core Speed 732 MHz 625 MHz (x2)
Memory Speed 3800 MHz 1986 MHz (x2)
Power (Max TDP) 219 watts 250 watts
Bandwidth 152000 MB/sec 127104 MB/sec
Texel Rate 43920 Mtexels/sec 50000 Mtexels/sec
Pixel Rate 29280 Mpixels/sec 20000 Mpixels/sec
Unified Shaders 480 800(160x5) (x2)
Texture Mapping Units 60 40 (x2)
Render Output Units 40 16 (x2)
Bus Type GDDR5 GDDR3
Bus Width 320-bit 256-bit (x2)
Fab Process 40 nm 55 nm
Transistors 3000 million 956 million
Bus PCIe x16 PCIe 2.0 x16 (PCIe bridge)
DirectX Version DirectX 11 DirectX 10.1
OpenGL Version OpenGL 4.1 OpenGL 3.0

Memory Bandwidth: Memory bandwidth is the largest amount of data (counted in megabytes per second) that can be transported across the external memory interface within a second. The number is calculated by multiplying the interface width by the speed of its memory. If it uses DDR RAM, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied per second. This is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The better this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly record to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

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GeForce GTX 570

Amazon.com

Check prices at:

Radeon HD 4850 X2 512MB

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

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